Comparison of Energy Absorption Properties of High Nitrogen Austenitic Steel and Cast Alloy Determined Using Low Velocity Perforation Test

Archives of Metallurgy and Materials

W. Mocko¹ 

[1] INSTITUTE OF FUNDAMENTAL TECHNOLOGICAL RESEARCH, POLISH ACADEMY OF SCIENCE, STR. PAWINSKIEGO 5B, 02-106 WARSAW, POLAND / MOTOR TRANSPORT INSTITUTE, 80 JAGIELLONSKA STR., 03-301 WARSZAWA, POLAND;

关键词: Keywords: Energy absorption;    austenitic steel;    cast alloy;    constitutive modeling;    damage initiation criterion;   

DOI  :  10.2478/amm-2014-0011

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The results of energy absorbing analysis of VP159 austenitic steel and LH556 cast alloy were presented in this article. The assessment was carried out on the basis of drop-weight tower perforation test at impact energy equal to 500J and striker velocity equal to 12,5 m/s. Moreover, the basic mechanical properties of both tested materials were estimated in order to calibrate coefficients of the Johnson-Cook visco-plasticity model and Johnson-Cook damage initialization criterion as well. Subsequently, both models were applied for the finite element method simulation of perforation process. The reasonable agreement between measured and calculated shape of energy absorption curves were obtained for steel and cast alloy as well.

【 授权许可】

Unknown